Thermomechanical analysis of the space shuttle tile thermal protection system (TPS) subjected to damage is conducted using the finite element method. The thermal and structural response of the damaged configurations are compared with the undamaged configuration to determine the relative effects of damage on the thermal protection capability and the induced thermal stresses in the TPS. The TPS i...

Thermomechanical analysis of the space shuttle tile thermal protection system (TPS) subjected to damage is conducted using the finite element method. The thermal and structural response of the damaged configurations are compared with the undamaged configuration to determine the relative effects of damage on the thermal protection capability and the induced thermal stresses in the TPS. The TPS i...

Mechanical spectroscopy has been used for studying the relaxation of the mechanical and thermal stresses, which are built at the fibre-matrix interfaces in AICu-A1203 Metal Matrix Composites (MMCs). The interface strength has been evaluated by the stress dependent damping which exhibits a peak of solid friction. This peak is interpreted as due to interface microcracking. Relaxation of thermal s...

In this paper we outline the ways in which thermal and spectral remote sensing can be used to diagnose and monitor effects of environmental stresses on plants. Following an introduction to the theory and practice of using thermal sensing to study plant water relations and stresses involving stomatal closure, the discussion is widened to cover a range of imaging technologies. Particular emphasis...

I~VESTI~ATION OF MODES OF THERMAL FRACTURE OF SOME BRITTLE MATERIALS by CHARLES R. NELSON Submitted to the De~artment of Civil Engineering on September 2, 1969, in partial fulfillment of the requirements for the degree of Doctor of Philosophy. An analysis of the temperatures and the thermal stresses in a detailed and accurate manner with the finite element technique resulted in the following ad...

The transient thermoelastic response of thick hollow cylinder made of functionally graded material under thermal loading is studied. The generalized coupled thermoelasticity based on the Green-Lindsay model is used. The thermal and mechanical properties of the functionally graded material are assumed to be varied in the radial direction according to a power law variation as a function of the vo...

Hydraulic stimulation in Enhanced Geothermal Systems is performed by injecting water at high pressure into low permeability, typically crystalline, rock. In most cases, the elevated pore pressure induces slip on preexisting fractures, resulting in an increase in permeability. This process involves interacting hydraulic, thermal, mechanical, and thermoelastic processes. It is complicated by the ...

The thermomechanical behavior of damaged space shuttle tile thermal protection system is determined using the finite element method. The relative effects of damage on the thermal protection capability and the induced thermal stresses in the TPS are determined by comparing the thermal and structural response of the damaged configurations with the undamaged configurations. The TPS, consisting of ...

The theory of static aeroelastic stability of supersonic wings including chordwise bending, as developed in reference 1, is further extended to include the influence of stresses arising from thermal gradients. The wing spanwise twist distribution is found to obey an ordinary differential equation of the fourth order whose coefficients depend on the thermal gradients. The influence of finite def...

The significance of compressive thermal stresses generated during microwave heating on concrete surface delamination is investigated analytically in this paper. Microwave energy acts as an internal heating source that causes concrete to heat up. The amount of microwave energy dissipated in concrete depends on microwave frequency, microwave power and the electromagnetic properties of the concret...